Custom Services order now ship next day


β2 microglobulin also known as B2M is a component of MHC class I molecules, MHC class I molecules have α1, α2, and α3 proteins which are present on all nucleated cells (excludes red blood cells). In humans, the β2 microglobulin protein is encoded by the B2M gene.
Protein class

Cancer-related genes, Disease related genes, Human disease related genes, Plasma proteins, Potential drug targets, Transporters

Predicted location


Single cell type specificity

Cell type enhanced (monocytes, NK-cells)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity


Heterodimer of an alpha chain and a beta chain. Beta-2-microglobulin is the beta-chain of major histocompatibility complex class I molecules. Polymers of beta 2-microglobulin can be found in tissues from patients on long-term hemodialysis. B2M alone (not in complex with HLA-I) interacts with M.tuberculosis EsxA (ESAT-6) and an EsxA-EsxB (CFP-10) complex; the tripartite complex can be detected in the host endoplasmic reticulum (PubMed:25356553). The B2M-EsxA complex can be detected in patients with pleural tuberculosis and is stable from pH 4.0 to 8.0 and in the presence of 2M NaCl (PubMed:25356553). Forms a heterotrimer with HLA-E and a self- or a foreign peptide (PubMed:9427624). Forms a heterotrimer with HLA-G and a self-peptide (PubMed:17056715). Forms a heterotrimer with HLA-F and a self-peptide (PubMed:10605026). Forms a heterotrimer with MR1 and a metabolite antigen.

More Types Infomation

Our customer service representatives are available 24 hours a day, from Monday to Sunday. Contact Us

Can't find the products you're looking for? Try to filter in the left sidebar.Filter By Tag

For Research Use Only. Not For Clinical Use.

  • 0
  • 0
    Go to compare

    Go to compare